// ┌─────────────────────────────────────────────────────────────────────┐ \\
// │ Raphaël - JavaScript Vector Library                                 │ \\
// ├─────────────────────────────────────────────────────────────────────┤ \\
// │ SVG Module                                                          │ \\
// ├─────────────────────────────────────────────────────────────────────┤ \\
// │ Copyright (c) 2008-2011 Dmitry Baranovskiy (http://raphaeljs.com)   │ \\
// │ Copyright (c) 2008-2011 Sencha Labs (http://sencha.com)             │ \\
// │ Licensed under the MIT (http://raphaeljs.com/license.html) license. │ \\
// └─────────────────────────────────────────────────────────────────────┘ \\
define('bui/graphic/raphael/svg',function(){
    window.Raphael && window.Raphael.svg && function(R) {
        var has = "hasOwnProperty",
            Str = String,
            toFloat = parseFloat,
            toInt = parseInt,
            math = Math,
            mmax = math.max,
            abs = math.abs,
            pow = math.pow,
            separator = /[, ]+/,
            eve = R.eve,
            E = "",
            S = " ";
        var xlink = "http://www.w3.org/1999/xlink",
            markers = {
                block: "M5,0 0,2.5 5,5z",
                classic: "M5,0 0,2.5 5,5 3.5,3 3.5,2z",
                diamond: "M2.5,0 5,2.5 2.5,5 0,2.5z",
                open: "M6,1 1,3.5 6,6",
                oval: "M2.5,0A2.5,2.5,0,0,1,2.5,5 2.5,2.5,0,0,1,2.5,0z"
            },
            markerCounter = {};
        R.toString = function () {
            return  "Your browser supports SVG.\nYou are running Rapha\xebl " + this.version;
        };
        var $ = function (el, attr) {
            if (attr) {
                if (typeof el == "string") {
                    el = $(el);
                }
                for (var key in attr) if (attr[has](key)) {
                    if (key.substring(0, 6) == "xlink:") {
                        el.setAttributeNS(xlink, key.substring(6), Str(attr[key]));
                    } else {
                        el.setAttribute(key, Str(attr[key]));
                    }
                }
            } else {
                el = R._g.doc.createElementNS("http://www.w3.org/2000/svg", el);
                el.style && (el.style.webkitTapHighlightColor = "rgba(0,0,0,0)");
            }
            return el;
        },
        addGradientFill = function (element, gradient) {
            var type = "linear",
                id = element.id + gradient,
                fx = .5, fy = .5,
                o = element.node,
                SVG = element.paper,
                s = o.style,
                el = R._g.doc.getElementById(id);
            if (!el) {
                gradient = Str(gradient).replace(R._radial_gradient, function (all, _fx, _fy) {
                    type = "radial";
                    if (_fx && _fy) {
                        fx = toFloat(_fx);
                        fy = toFloat(_fy);
                        var dir = ((fy > .5) * 2 - 1);
                        pow(fx - .5, 2) + pow(fy - .5, 2) > .25 &&
                            (fy = math.sqrt(.25 - pow(fx - .5, 2)) * dir + .5) &&
                            fy != .5 &&
                            (fy = fy.toFixed(5) - 1e-5 * dir);
                    }
                    return E;
                });
                gradient = gradient.split(/\s*\-\s*/);
                if (type == "linear") {
                    var angle = gradient.shift();
                    angle = -toFloat(angle);
                    if (isNaN(angle)) {
                        return null;
                    }
                    var vector = [0, 0, math.cos(R.rad(angle)), math.sin(R.rad(angle))],
                        max = 1 / (mmax(abs(vector[2]), abs(vector[3])) || 1);
                    vector[2] *= max;
                    vector[3] *= max;
                    if (vector[2] < 0) {
                        vector[0] = -vector[2];
                        vector[2] = 0;
                    }
                    if (vector[3] < 0) {
                        vector[1] = -vector[3];
                        vector[3] = 0;
                    }
                }
                var dots = R._parseDots(gradient);
                if (!dots) {
                    return null;
                }
                id = id.replace(/[\(\)\s,\xb0#]/g, "_");
                
                if (element.gradient && id != element.gradient.id) {
                    SVG.defs.removeChild(element.gradient);
                    delete element.gradient;
                }

                if (!element.gradient) {
                    el = $(type + "Gradient", {id: id});
                    element.gradient = el;
                    $(el, type == "radial" ? {
                        fx: fx,
                        fy: fy
                    } : {
                        x1: vector[0],
                        y1: vector[1],
                        x2: vector[2],
                        y2: vector[3],
                        gradientTransform: element.matrix.invert()
                    });
                    SVG.defs.appendChild(el);
                    for (var i = 0, ii = dots.length; i < ii; i++) {
                        el.appendChild($("stop", {
                            offset: dots[i].offset ? dots[i].offset : i ? "100%" : "0%",
                            "stop-color": dots[i].color || "#fff"
                        }));
                    }
                }
            }
            $(o, {
                fill: "url(#" + id + ")",
                opacity: 1,
                "fill-opacity": 1
            });
            s.fill = E;
            s.opacity = 1;
            s.fillOpacity = 1;
            return 1;
        },
        updatePosition = function (o) {
            var bbox = o.getBBox(1);
            $(o.pattern, {patternTransform: o.matrix.invert() + " translate(" + bbox.x + "," + bbox.y + ")"});
        },
        addArrow = function (o, value, isEnd) {
            if (o.type == "path") {
                var values = Str(value).toLowerCase().split("-"),
                    p = o.paper,
                    se = isEnd ? "end" : "start",
                    node = o.node,
                    attrs = o.attrs,
                    stroke = attrs["stroke-width"],
                    i = values.length,
                    type = "classic",
                    from,
                    to,
                    dx,
                    refX,
                    attr,
                    w = 3,
                    h = 3,
                    t = 5;
                while (i--) {
                    switch (values[i]) {
                        case "block":
                        case "classic":
                        case "oval":
                        case "diamond":
                        case "open":
                        case "none":
                            type = values[i];
                            break;
                        case "wide": h = 5; break;
                        case "narrow": h = 2; break;
                        case "long": w = 5; break;
                        case "short": w = 2; break;
                    }
                }
                if (type == "open") {
                    w += 2;
                    h += 2;
                    t += 2;
                    dx = 1;
                    refX = isEnd ? 4 : 1;
                    attr = {
                        fill: "none",
                        stroke: attrs.stroke
                    };
                } else {
                    refX = dx = w / 2;
                    attr = {
                        fill: attrs.stroke,
                        stroke: "none"
                    };
                }
                if (o._.arrows) {
                    if (isEnd) {
                        o._.arrows.endPath && markerCounter[o._.arrows.endPath]--;
                        o._.arrows.endMarker && markerCounter[o._.arrows.endMarker]--;
                    } else {
                        o._.arrows.startPath && markerCounter[o._.arrows.startPath]--;
                        o._.arrows.startMarker && markerCounter[o._.arrows.startMarker]--;
                    }
                } else {
                    o._.arrows = {};
                }
                if (type != "none") {
                    var pathId = "raphael-marker-" + type,
                        markerId = "raphael-marker-" + se + type + w + h;
                    if (!R._g.doc.getElementById(pathId)) {
                        p.defs.appendChild($($("path"), {
                            "stroke-linecap": "round",
                            d: markers[type],
                            id: pathId
                        }));
                        markerCounter[pathId] = 1;
                    } else {
                        markerCounter[pathId]++;
                    }
                    var marker = R._g.doc.getElementById(markerId),
                        use;
                    if (!marker) {
                        marker = $($("marker"), {
                            id: markerId,
                            markerHeight: h,
                            markerWidth: w,
                            orient: "auto",
                            refX: refX,
                            refY: h / 2
                        });
                        use = $($("use"), {
                            "xlink:href": "#" + pathId,
                            transform: (isEnd ? "rotate(180 " + w / 2 + " " + h / 2 + ") " : E) + "scale(" + w / t + "," + h / t + ")",
                            "stroke-width": (1 / ((w / t + h / t) / 2)).toFixed(4)
                        });
                        marker.appendChild(use);
                        p.defs.appendChild(marker);
                        markerCounter[markerId] = 1;
                    } else {
                        markerCounter[markerId]++;
                        use = marker.getElementsByTagName("use")[0];
                    }
                    $(use, attr);
                    var delta = dx * (type != "diamond" && type != "oval");
                    if (isEnd) {
                        from = o._.arrows.startdx * stroke || 0;
                        to = R.getTotalLength(attrs.path) - delta * stroke;
                    } else {
                        from = delta * stroke;
                        to = R.getTotalLength(attrs.path) - (o._.arrows.enddx * stroke || 0);
                    }
                    attr = {};
                    attr["marker-" + se] = "url(#" + markerId + ")";
                    if (to || from) {
                        attr.d = R.getSubpath(attrs.path, from, to);
                    }
                    $(node, attr);
                    o._.arrows[se + "Path"] = pathId;
                    o._.arrows[se + "Marker"] = markerId;
                    o._.arrows[se + "dx"] = delta;
                    o._.arrows[se + "Type"] = type;
                    o._.arrows[se + "String"] = value;
                } else {
                    if (isEnd) {
                        from = o._.arrows.startdx * stroke || 0;
                        to = R.getTotalLength(attrs.path) - from;
                    } else {
                        from = 0;
                        to = R.getTotalLength(attrs.path) - (o._.arrows.enddx * stroke || 0);
                    }
                    o._.arrows[se + "Path"] && $(node, {d: R.getSubpath(attrs.path, from, to)});
                    delete o._.arrows[se + "Path"];
                    delete o._.arrows[se + "Marker"];
                    delete o._.arrows[se + "dx"];
                    delete o._.arrows[se + "Type"];
                    delete o._.arrows[se + "String"];
                }
                for (attr in markerCounter) if (markerCounter[has](attr) && !markerCounter[attr]) {
                    var item = R._g.doc.getElementById(attr);
                    item && item.parentNode.removeChild(item);
                }
            }
        },
        dasharray = {
            "": [0],
            "none": [0],
            "-": [3, 1],
            ".": [1, 1],
            "-.": [3, 1, 1, 1],
            "-..": [3, 1, 1, 1, 1, 1],
            ". ": [1, 3],
            "- ": [4, 3],
            "--": [8, 3],
            "- .": [4, 3, 1, 3],
            "--.": [8, 3, 1, 3],
            "--..": [8, 3, 1, 3, 1, 3]
        },
        addDashes = function (o, value, params) {
            value = dasharray[Str(value).toLowerCase()];
            if (value) {
                var width = o.attrs["stroke-width"] || "1",
                    butt = {round: width, square: width, butt: 0}[o.attrs["stroke-linecap"] || params["stroke-linecap"]] || 0,
                    dashes = [],
                    i = value.length;
                while (i--) {
                    dashes[i] = value[i] * width + ((i % 2) ? 1 : -1) * butt;
                }
                $(o.node, {"stroke-dasharray": dashes.join(",")});
            }
        },
        setFillAndStroke = function (o, params) {
            var node = o.node,
                attrs = o.attrs,
                vis = node.style.visibility;
            node.style.visibility = "hidden";
            for (var att in params) {
                if (params[has](att)) {
                    if (!R._availableAttrs[has](att)) {
                        continue;
                    }
                    var value = params[att];
                    attrs[att] = value;
                    switch (att) {
                        case "blur":
                            o.blur(value);
                            break;
                        case "href":
                        case "title":
                            var hl = $("title");
                            var val = R._g.doc.createTextNode(value);
                            hl.appendChild(val);
                            node.appendChild(hl);
                            break;
                        case "target":
                            var pn = node.parentNode;
                            if (pn.tagName.toLowerCase() != "a") {
                                var hl = $("a");
                                pn.insertBefore(hl, node);
                                hl.appendChild(node);
                                pn = hl;
                            }
                            if (att == "target") {
                                pn.setAttributeNS(xlink, "show", value == "blank" ? "new" : value);
                            } else {
                                pn.setAttributeNS(xlink, att, value);
                            }
                            break;
                        case "cursor":
                            node.style.cursor = value;
                            break;
                        case "transform":
                            o.transform(value);
                            break;
                        case "arrow-start":
                            addArrow(o, value);
                            break;
                        case "arrow-end":
                            addArrow(o, value, 1);
                            break;
                        case "clip-rect":
                            var rect = Str(value).split(separator);
                            if (rect.length == 4) {
                                o.clip && o.clip.parentNode.parentNode.removeChild(o.clip.parentNode);
                                var el = $("clipPath"),
                                    rc = $("rect");
                                el.id = R.createUUID();
                                $(rc, {
                                    x: rect[0],
                                    y: rect[1],
                                    width: rect[2],
                                    height: rect[3]
                                });
                                el.appendChild(rc);
                                o.paper.defs.appendChild(el);
                                $(node, {"clip-path": "url(#" + el.id + ")"});
                                o.clip = rc;
                            }
                            if (!value) {
                                var path = node.getAttribute("clip-path");
                                if (path) {
                                    var clip = R._g.doc.getElementById(path.replace(/(^url\(#|\)$)/g, E));
                                    clip && clip.parentNode.removeChild(clip);
                                    $(node, {"clip-path": E});
                                    delete o.clip;
                                }
                            }
                        break;
                        case "path":
                            if (o.type == "path") {
                                $(node, {d: value ? attrs.path = R._pathToAbsolute(value) : "M0,0"});
                                o._.dirty = 1;
                                if (o._.arrows) {
                                    "startString" in o._.arrows && addArrow(o, o._.arrows.startString);
                                    "endString" in o._.arrows && addArrow(o, o._.arrows.endString, 1);
                                }
                            }
                            break;
                        case "width":
                            node.setAttribute(att, value);
                            o._.dirty = 1;
                            if (attrs.fx) {
                                att = "x";
                                value = attrs.x;
                            } else {
                                break;
                            }
                        case "x":
                            if (attrs.fx) {
                                value = -attrs.x - (attrs.width || 0);
                            }
                        case "rx":
                            if (att == "rx" && o.type == "rect") {
                                break;
                            }
                        case "cx":
                            node.setAttribute(att, value);
                            o.pattern && updatePosition(o);
                            o._.dirty = 1;
                            break;
                        case "height":
                            node.setAttribute(att, value);
                            o._.dirty = 1;
                            if (attrs.fy) {
                                att = "y";
                                value = attrs.y;
                            } else {
                                break;
                            }
                        case "y":
                            if (attrs.fy) {
                                value = -attrs.y - (attrs.height || 0);
                            }
                        case "ry":
                            if (att == "ry" && o.type == "rect") {
                                break;
                            }
                        case "cy":
                            node.setAttribute(att, value);
                            o.pattern && updatePosition(o);
                            o._.dirty = 1;
                            break;
                        case "r":
                            if (o.type == "rect") {
                                $(node, {rx: value, ry: value});
                            } else {
                                node.setAttribute(att, value);
                            }
                            o._.dirty = 1;
                            break;
                        case "src":
                            if (o.type == "image") {
                                node.setAttributeNS(xlink, "href", value);
                            }
                            break;
                        case "stroke-width":
                            if (o._.sx != 1 || o._.sy != 1) {
                                value /= mmax(abs(o._.sx), abs(o._.sy)) || 1;
                            }
                            if (o.paper._vbSize) {
                                value *= o.paper._vbSize;
                            }
                            node.setAttribute(att, value);
                            if (attrs["stroke-dasharray"]) {
                                addDashes(o, attrs["stroke-dasharray"], params);
                            }
                            if (o._.arrows) {
                                "startString" in o._.arrows && addArrow(o, o._.arrows.startString);
                                "endString" in o._.arrows && addArrow(o, o._.arrows.endString, 1);
                            }
                            break;
                        case "stroke-dasharray":
                            addDashes(o, value, params);
                            break;
                        case "fill":
                            var isURL = Str(value).match(R._ISURL);
                            if (isURL) {
                                el = $("pattern");
                                var ig = $("image");
                                el.id = R.createUUID();
                                $(el, {x: 0, y: 0, patternUnits: "userSpaceOnUse", height: 1, width: 1});
                                $(ig, {x: 0, y: 0, "xlink:href": isURL[1]});
                                el.appendChild(ig);

                                (function (el) {
                                    R._preload(isURL[1], function () {
                                        var w = this.offsetWidth,
                                            h = this.offsetHeight;
                                        $(el, {width: w, height: h});
                                        $(ig, {width: w, height: h});
                                        o.paper.safari();
                                    });
                                })(el);
                                o.paper.defs.appendChild(el);
                                $(node, {fill: "url(#" + el.id + ")"});
                                o.pattern = el;
                                o.pattern && updatePosition(o);
                                break;
                            }
                            var clr = R.getRGB(value);
                            if (!clr.error) {
                                delete params.gradient;
                                delete attrs.gradient;
                                !R.is(attrs.opacity, "undefined") &&
                                    R.is(params.opacity, "undefined") &&
                                    $(node, {opacity: attrs.opacity});
                                !R.is(attrs["fill-opacity"], "undefined") &&
                                    R.is(params["fill-opacity"], "undefined") &&
                                    $(node, {"fill-opacity": attrs["fill-opacity"]});
                            } else if ((o.type == "circle" || o.type == "ellipse" || Str(value).charAt() != "r") && addGradientFill(o, value)) {
                                if ("opacity" in attrs || "fill-opacity" in attrs) {
                                    var gradient = R._g.doc.getElementById(node.getAttribute("fill").replace(/^url\(#|\)$/g, E));
                                    if (gradient) {
                                        var stops = gradient.getElementsByTagName("stop");
                                        $(stops[stops.length - 1], {"stop-opacity": ("opacity" in attrs ? attrs.opacity : 1) * ("fill-opacity" in attrs ? attrs["fill-opacity"] : 1)});
                                    }
                                }
                                attrs.gradient = value;
                                attrs.fill = "none";
                                break;
                            }
                            clr[has]("opacity") && $(node, {"fill-opacity": clr.opacity > 1 ? clr.opacity / 100 : clr.opacity});
                        case "stroke":
                            clr = R.getRGB(value);
                            node.setAttribute(att, clr.hex);
                            att == "stroke" && clr[has]("opacity") && $(node, {"stroke-opacity": clr.opacity > 1 ? clr.opacity / 100 : clr.opacity});
                            if (att == "stroke" && o._.arrows) {
                                "startString" in o._.arrows && addArrow(o, o._.arrows.startString);
                                "endString" in o._.arrows && addArrow(o, o._.arrows.endString, 1);
                            }
                            break;
                        case "gradient":
                            (o.type == "circle" || o.type == "ellipse" || Str(value).charAt() != "r") && addGradientFill(o, value);
                            break;
                        case "opacity":
                            if (attrs.gradient && !attrs[has]("stroke-opacity")) {
                                $(node, {"stroke-opacity": value > 1 ? value / 100 : value});
                            }
                            // fall
                        case "fill-opacity":
                            if (attrs.gradient) {
                                gradient = R._g.doc.getElementById(node.getAttribute("fill").replace(/^url\(#|\)$/g, E));
                                if (gradient) {
                                    stops = gradient.getElementsByTagName("stop");
                                    $(stops[stops.length - 1], {"stop-opacity": value});
                                }
                                break;
                            }
                        default:
                            att == "font-size" && (value = toInt(value, 10) + "px");
                            var cssrule = att.replace(/(\-.)/g, function (w) {
                                return w.substring(1).toUpperCase();
                            });
                            node.style[cssrule] = value;
                            o._.dirty = 1;
                            node.setAttribute(att, value);
                            break;
                    }
                }
            }

            tuneText(o, params);
            node.style.visibility = vis;
        },
        leading = 1.2,
        tuneText = function (el, params) {
            if (el.type != "text" || !(params[has]("text") || params[has]("font") || params[has]("font-size") || params[has]("x") || params[has]("y"))) {
                return;
            }
            var a = el.attrs,
                node = el.node,
                fontSize = node.firstChild ? toInt(R._g.doc.defaultView.getComputedStyle(node.firstChild, E).getPropertyValue("font-size"), 10) : 10;

            if (params[has]("text")) {
                a.text = params.text;
                while (node.firstChild) {
                    node.removeChild(node.firstChild);
                }
                var texts = Str(params.text).split("\n"),
                    tspans = [],
                    tspan;
                for (var i = 0, ii = texts.length; i < ii; i++) {
                    tspan = $("tspan");
                    i && $(tspan, {dy: fontSize * leading, x: a.x});
                    tspan.appendChild(R._g.doc.createTextNode(texts[i]));
                    node.appendChild(tspan);
                    tspans[i] = tspan;
                }
            } else {
                tspans = node.getElementsByTagName("tspan");
                for (i = 0, ii = tspans.length; i < ii; i++) if (i) {
                    $(tspans[i], {dy: fontSize * leading, x: a.x});
                } else {
                    $(tspans[0], {dy: 0});
                }
            }
            $(node, {x: a.x, y: a.y});
            el._.dirty = 1;
            var bb = el._getBBox(),
                dif = a.y - (bb.y + bb.height / 2);
            dif && R.is(dif, "finite") && $(tspans[0], {dy: dif});
        },
        Element = function (node, svg) {
            var X = 0,
                Y = 0;
            /*\
             * Element.node
             [ property (object) ]
             **
             * Gives you a reference to the DOM object, so you can assign event handlers or just mess around.
             **
             * Note: Don’t mess with it.
             > Usage
             | // draw a circle at coordinate 10,10 with radius of 10
             | var c = paper.circle(10, 10, 10);
             | c.node.onclick = function () {
             |     c.attr("fill", "red");
             | };
            \*/
            this[0] = this.node = node;
            /*\
             * Element.raphael
             [ property (object) ]
             **
             * Internal reference to @Raphael object. In case it is not available.
             > Usage
             | Raphael.el.red = function () {
             |     var hsb = this.paper.raphael.rgb2hsb(this.attr("fill"));
             |     hsb.h = 1;
             |     this.attr({fill: this.paper.raphael.hsb2rgb(hsb).hex});
             | }
            \*/
            node.raphael = true;
            /*\
             * Element.id
             [ property (number) ]
             **
             * Unique id of the element. Especially usesful when you want to listen to events of the element, 
             * because all events are fired in format `<module>.<action>.<id>`. Also useful for @Paper.getById method.
            \*/
            this.id = R._oid++;
            node.raphaelid = this.id;
            this.matrix = R.matrix();
            this.realPath = null;
            /*\
             * Element.paper
             [ property (object) ]
             **
             * Internal reference to “paper” where object drawn. Mainly for use in plugins and element extensions.
             > Usage
             | Raphael.el.cross = function () {
             |     this.attr({fill: "red"});
             |     this.paper.path("M10,10L50,50M50,10L10,50")
             |         .attr({stroke: "red"});
             | }
            \*/
            this.paper = svg;
            this.attrs = this.attrs || {};
            this._ = {
                transform: [],
                sx: 1,
                sy: 1,
                deg: 0,
                dx: 0,
                dy: 0,
                dirty: 1
            };
            !svg.bottom && (svg.bottom = this);
            /*\
             * Element.prev
             [ property (object) ]
             **
             * Reference to the previous element in the hierarchy.
            \*/
            this.prev = svg.top;
            svg.top && (svg.top.next = this);
            svg.top = this;
            /*\
             * Element.next
             [ property (object) ]
             **
             * Reference to the next element in the hierarchy.
            \*/
            this.next = null;
        },
        elproto = R.el;

        Element.prototype = elproto;
        elproto.constructor = Element;

        R._engine.path = function (pathString, SVG) {
            var el = $("path");
            SVG.canvas && SVG.canvas.appendChild(el);
            var p = new Element(el, SVG);
            p.type = "path";
            setFillAndStroke(p, {
                fill: "none",
                stroke: "#000",
                path: pathString
            });
            return p;
        };
        /*\
         * Element.rotate
         [ method ]
         **
         * Deprecated! Use @Element.transform instead.
         * Adds rotation by given angle around given point to the list of
         * transformations of the element.
         > Parameters
         - deg (number) angle in degrees
         - cx (number) #optional x coordinate of the centre of rotation
         - cy (number) #optional y coordinate of the centre of rotation
         * If cx & cy aren’t specified centre of the shape is used as a point of rotation.
         = (object) @Element
        \*/
        elproto.rotate = function (deg, cx, cy) {
            if (this.removed) {
                return this;
            }
            deg = Str(deg).split(separator);
            if (deg.length - 1) {
                cx = toFloat(deg[1]);
                cy = toFloat(deg[2]);
            }
            deg = toFloat(deg[0]);
            (cy == null) && (cx = cy);
            if (cx == null || cy == null) {
                var bbox = this.getBBox(1);
                cx = bbox.x + bbox.width / 2;
                cy = bbox.y + bbox.height / 2;
            }
            this.transform(this._.transform.concat([["r", deg, cx, cy]]));
            return this;
        };
        /*\
         * Element.scale
         [ method ]
         **
         * Deprecated! Use @Element.transform instead.
         * Adds scale by given amount relative to given point to the list of
         * transformations of the element.
         > Parameters
         - sx (number) horisontal scale amount
         - sy (number) vertical scale amount
         - cx (number) #optional x coordinate of the centre of scale
         - cy (number) #optional y coordinate of the centre of scale
         * If cx & cy aren’t specified centre of the shape is used instead.
         = (object) @Element
        \*/
        elproto.scale = function (sx, sy, cx, cy) {
            if (this.removed) {
                return this;
            }
            sx = Str(sx).split(separator);
            if (sx.length - 1) {
                sy = toFloat(sx[1]);
                cx = toFloat(sx[2]);
                cy = toFloat(sx[3]);
            }
            sx = toFloat(sx[0]);
            (sy == null) && (sy = sx);
            (cy == null) && (cx = cy);
            if (cx == null || cy == null) {
                var bbox = this.getBBox(1);
            }
            cx = cx == null ? bbox.x + bbox.width / 2 : cx;
            cy = cy == null ? bbox.y + bbox.height / 2 : cy;
            this.transform(this._.transform.concat([["s", sx, sy, cx, cy]]));
            return this;
        };
        /*\
         * Element.translate
         [ method ]
         **
         * Deprecated! Use @Element.transform instead.
         * Adds translation by given amount to the list of transformations of the element.
         > Parameters
         - dx (number) horisontal shift
         - dy (number) vertical shift
         = (object) @Element
        \*/
        elproto.translate = function (dx, dy) {
            if (this.removed) {
                return this;
            }
            dx = Str(dx).split(separator);
            if (dx.length - 1) {
                dy = toFloat(dx[1]);
            }
            dx = toFloat(dx[0]) || 0;
            dy = +dy || 0;
            this.transform(this._.transform.concat([["t", dx, dy]]));
            return this;
        };
        /*\
         * Element.transform
         [ method ]
         **
         * Adds transformation to the element which is separate to other attributes,
         * i.e. translation doesn’t change `x` or `y` of the rectange. The format
         * of transformation string is similar to the path string syntax:
         | "t100,100r30,100,100s2,2,100,100r45s1.5"
         * Each letter is a command. There are four commands: `t` is for translate, `r` is for rotate, `s` is for
         * scale and `m` is for matrix.
         *
         * There are also alternative “absolute” translation, rotation and scale: `T`, `R` and `S`. They will not take previous transformation into account. For example, `...T100,0` will always move element 100 px horisontally, while `...t100,0` could move it vertically if there is `r90` before. Just compare results of `r90t100,0` and `r90T100,0`.
         *
         * So, the example line above could be read like “translate by 100, 100; rotate 30° around 100, 100; scale twice around 100, 100;
         * rotate 45° around centre; scale 1.5 times relative to centre”. As you can see rotate and scale commands have origin
         * coordinates as optional parameters, the default is the centre point of the element.
         * Matrix accepts six parameters.
         > Usage
         | var el = paper.rect(10, 20, 300, 200);
         | // translate 100, 100, rotate 45°, translate -100, 0
         | el.transform("t100,100r45t-100,0");
         | // if you want you can append or prepend transformations
         | el.transform("...t50,50");
         | el.transform("s2...");
         | // or even wrap
         | el.transform("t50,50...t-50-50");
         | // to reset transformation call method with empty string
         | el.transform("");
         | // to get current value call it without parameters
         | console.log(el.transform());
         > Parameters
         - tstr (string) #optional transformation string
         * If tstr isn’t specified
         = (string) current transformation string
         * else
         = (object) @Element
        \*/
        elproto.transform = function (tstr) {
            var _ = this._;
            if (tstr == null) {
                return _.transform;
            }
            R._extractTransform(this, tstr);

            this.clip && $(this.clip, {transform: this.matrix.invert()});
            this.pattern && updatePosition(this);
            this.node && $(this.node, {transform: this.matrix});
        
            if (_.sx != 1 || _.sy != 1) {
                var sw = this.attrs[has]("stroke-width") ? this.attrs["stroke-width"] : 1;
                this.attr({"stroke-width": sw});
            }

            return this;
        };
        /*\
         * Element.hide
         [ method ]
         **
         * Makes element invisible. See @Element.show.
         = (object) @Element
        \*/
        elproto.hide = function () {
            !this.removed && this.paper.safari(this.node.style.display = "none");
            return this;
        };
        /*\
         * Element.show
         [ method ]
         **
         * Makes element visible. See @Element.hide.
         = (object) @Element
        \*/
        elproto.show = function () {
            !this.removed && this.paper.safari(this.node.style.display = "");
            return this;
        };
        /*\
         * Element.remove
         [ method ]
         **
         * Removes element from the paper.
        \*/
        elproto.remove = function () {
            if (this.removed || !this.node.parentNode) {
                return;
            }
            var paper = this.paper;
            paper.__set__ && paper.__set__.exclude(this);
            eve.unbind("raphael.*.*." + this.id);
            if (this.gradient) {
                paper.defs.removeChild(this.gradient);
            }
            R._tear(this, paper);
            if (this.node.parentNode.tagName.toLowerCase() == "a") {
                this.node.parentNode.parentNode.removeChild(this.node.parentNode);
            } else {
                this.node.parentNode.removeChild(this.node);
            }
            for (var i in this) {
                this[i] = typeof this[i] == "function" ? R._removedFactory(i) : null;
            }
            this.removed = true;
        };
        elproto._getBBox = function () {
            if (this.node.style.display == "none") {
                this.show();
                var hide = true;
            }
            var bbox = {};
            try {
                bbox = this.node.getBBox();
            } catch(e) {
                // Firefox 3.0.x plays badly here
            } finally {
                bbox = bbox || {};
            }
            hide && this.hide();
            return bbox;
        };
        /*\
         * Element.attr
         [ method ]
         **
         * Sets the attributes of the element.
         > Parameters
         - attrName (string) attribute’s name
         - value (string) value
         * or
         - params (object) object of name/value pairs
         * or
         - attrName (string) attribute’s name
         * or
         - attrNames (array) in this case method returns array of current values for given attribute names
         = (object) @Element if attrsName & value or params are passed in.
         = (...) value of the attribute if only attrsName is passed in.
         = (array) array of values of the attribute if attrsNames is passed in.
         = (object) object of attributes if nothing is passed in.
         > Possible parameters
         # <p>Please refer to the <a href="http://www.w3.org/TR/SVG/" title="The W3C Recommendation for the SVG language describes these properties in detail.">SVG specification</a> for an explanation of these parameters.</p>
         o arrow-end (string) arrowhead on the end of the path. The format for string is `<type>[-<width>[-<length>]]`. Possible types: `classic`, `block`, `open`, `oval`, `diamond`, `none`, width: `wide`, `narrow`, `medium`, length: `long`, `short`, `midium`.
         o clip-rect (string) comma or space separated values: x, y, width and height
         o cursor (string) CSS type of the cursor
         o cx (number) the x-axis coordinate of the center of the circle, or ellipse
         o cy (number) the y-axis coordinate of the center of the circle, or ellipse
         o fill (string) colour, gradient or image
         o fill-opacity (number)
         o font (string)
         o font-family (string)
         o font-size (number) font size in pixels
         o font-weight (string)
         o height (number)
         o href (string) URL, if specified element behaves as hyperlink
         o opacity (number)
         o path (string) SVG path string format
         o r (number) radius of the circle, ellipse or rounded corner on the rect
         o rx (number) horisontal radius of the ellipse
         o ry (number) vertical radius of the ellipse
         o src (string) image URL, only works for @Element.image element
         o stroke (string) stroke colour
         o stroke-dasharray (string) [“”, “`-`”, “`.`”, “`-.`”, “`-..`”, “`. `”, “`- `”, “`--`”, “`- .`”, “`--.`”, “`--..`”]
         o stroke-linecap (string) [“`butt`”, “`square`”, “`round`”]
         o stroke-linejoin (string) [“`bevel`”, “`round`”, “`miter`”]
         o stroke-miterlimit (number)
         o stroke-opacity (number)
         o stroke-width (number) stroke width in pixels, default is '1'
         o target (string) used with href
         o text (string) contents of the text element. Use `\n` for multiline text
         o text-anchor (string) [“`start`”, “`middle`”, “`end`”], default is “`middle`”
         o title (string) will create tooltip with a given text
         o transform (string) see @Element.transform
         o width (number)
         o x (number)
         o y (number)
         > Gradients
         * Linear gradient format: “`‹angle›-‹colour›[-‹colour›[:‹offset›]]*-‹colour›`”, example: “`90-#fff-#000`” – 90°
         * gradient from white to black or “`0-#fff-#f00:20-#000`” – 0° gradient from white via red (at 20%) to black.
         *
         * radial gradient: “`r[(‹fx›, ‹fy›)]‹colour›[-‹colour›[:‹offset›]]*-‹colour›`”, example: “`r#fff-#000`” –
         * gradient from white to black or “`r(0.25, 0.75)#fff-#000`” – gradient from white to black with focus point
         * at 0.25, 0.75. Focus point coordinates are in 0..1 range. Radial gradients can only be applied to circles and ellipses.
         > Path String
         # <p>Please refer to <a href="http://www.w3.org/TR/SVG/paths.html#PathData" title="Details of a path’s data attribute’s format are described in the SVG specification.">SVG documentation regarding path string</a>. Raphaël fully supports it.</p>
         > Colour Parsing
         # <ul>
         #     <li>Colour name (“<code>red</code>”, “<code>green</code>”, “<code>cornflowerblue</code>”, etc)</li>
         #     <li>#••• — shortened HTML colour: (“<code>#000</code>”, “<code>#fc0</code>”, etc)</li>
         #     <li>#•••••• — full length HTML colour: (“<code>#000000</code>”, “<code>#bd2300</code>”)</li>
         #     <li>rgb(•••, •••, •••) — red, green and blue channels’ values: (“<code>rgb(200,&nbsp;100,&nbsp;0)</code>”)</li>
         #     <li>rgb(•••%, •••%, •••%) — same as above, but in %: (“<code>rgb(100%,&nbsp;175%,&nbsp;0%)</code>”)</li>
         #     <li>rgba(•••, •••, •••, •••) — red, green and blue channels’ values: (“<code>rgba(200,&nbsp;100,&nbsp;0, .5)</code>”)</li>
         #     <li>rgba(•••%, •••%, •••%, •••%) — same as above, but in %: (“<code>rgba(100%,&nbsp;175%,&nbsp;0%, 50%)</code>”)</li>
         #     <li>hsb(•••, •••, •••) — hue, saturation and brightness values: (“<code>hsb(0.5,&nbsp;0.25,&nbsp;1)</code>”)</li>
         #     <li>hsb(•••%, •••%, •••%) — same as above, but in %</li>
         #     <li>hsba(•••, •••, •••, •••) — same as above, but with opacity</li>
         #     <li>hsl(•••, •••, •••) — almost the same as hsb, see <a href="http://en.wikipedia.org/wiki/HSL_and_HSV" title="HSL and HSV - Wikipedia, the free encyclopedia">Wikipedia page</a></li>
         #     <li>hsl(•••%, •••%, •••%) — same as above, but in %</li>
         #     <li>hsla(•••, •••, •••, •••) — same as above, but with opacity</li>
         #     <li>Optionally for hsb and hsl you could specify hue as a degree: “<code>hsl(240deg,&nbsp;1,&nbsp;.5)</code>” or, if you want to go fancy, “<code>hsl(240°,&nbsp;1,&nbsp;.5)</code>”</li>
         # </ul>
        \*/
        elproto.attr = function (name, value) {
            if (this.removed) {
                return this;
            }
            if (name == null) {
                var res = {};
                for (var a in this.attrs) if (this.attrs[has](a)) {
                    res[a] = this.attrs[a];
                }
                res.gradient && res.fill == "none" && (res.fill = res.gradient) && delete res.gradient;
                res.transform = this._.transform;
                return res;
            }
            if (value == null && R.is(name, "string")) {
                if (name == "fill" && this.attrs.fill == "none" && this.attrs.gradient) {
                    return this.attrs.gradient;
                }
                if (name == "transform") {
                    return this._.transform;
                }
                var names = name.split(separator),
                    out = {};
                for (var i = 0, ii = names.length; i < ii; i++) {
                    name = names[i];
                    if (name in this.attrs) {
                        out[name] = this.attrs[name];
                    } else if (R.is(this.paper.customAttributes[name], "function")) {
                        out[name] = this.paper.customAttributes[name].def;
                    } else {
                        out[name] = R._availableAttrs[name];
                    }
                }
                return ii - 1 ? out : out[names[0]];
            }
            if (value == null && R.is(name, "array")) {
                out = {};
                for (i = 0, ii = name.length; i < ii; i++) {
                    out[name[i]] = this.attr(name[i]);
                }
                return out;
            }
            if (value != null) {
                var params = {};
                params[name] = value;
            } else if (name != null && R.is(name, "object")) {
                params = name;
            }
            for (var key in params) {
                eve("raphael.attr." + key + "." + this.id, this, params[key]);
            }
            for (key in this.paper.customAttributes) if (this.paper.customAttributes[has](key) && params[has](key) && R.is(this.paper.customAttributes[key], "function")) {
                var par = this.paper.customAttributes[key].apply(this, [].concat(params[key]));
                this.attrs[key] = params[key];
                for (var subkey in par) if (par[has](subkey)) {
                    params[subkey] = par[subkey];
                }
            }
            setFillAndStroke(this, params);
            return this;
        };
        /*\
         * Element.toFront
         [ method ]
         **
         * Moves the element so it is the closest to the viewer’s eyes, on top of other elements.
         = (object) @Element
        \*/
        elproto.toFront = function () {
            if (this.removed) {
                return this;
            }
            if (this.node.parentNode.tagName.toLowerCase() == "a") {
                this.node.parentNode.parentNode.appendChild(this.node.parentNode);
            } else {
                this.node.parentNode.appendChild(this.node);
            }
            var svg = this.paper;
            svg.top != this && R._tofront(this, svg);
            return this;
        };
        /*\
         * Element.toBack
         [ method ]
         **
         * Moves the element so it is the furthest from the viewer’s eyes, behind other elements.
         = (object) @Element
        \*/
        elproto.toBack = function () {
            if (this.removed) {
                return this;
            }
            var parent = this.node.parentNode;
            if (parent.tagName.toLowerCase() == "a") {
                parent.parentNode.insertBefore(this.node.parentNode, this.node.parentNode.parentNode.firstChild); 
            } else if (parent.firstChild != this.node) {
                parent.insertBefore(this.node, this.node.parentNode.firstChild);
            }
            R._toback(this, this.paper);
            var svg = this.paper;
            return this;
        };
        /*\
         * Element.insertAfter
         [ method ]
         **
         * Inserts current object after the given one.
         = (object) @Element
        \*/
        elproto.insertAfter = function (element) {
            if (this.removed) {
                return this;
            }
            var node = element.node || element[element.length - 1].node;
            if (node.nextSibling) {
                node.parentNode.insertBefore(this.node, node.nextSibling);
            } else {
                node.parentNode.appendChild(this.node);
            }
            R._insertafter(this, element, this.paper);
            return this;
        };
        /*\
         * Element.insertBefore
         [ method ]
         **
         * Inserts current object before the given one.
         = (object) @Element
        \*/
        elproto.insertBefore = function (element) {
            if (this.removed) {
                return this;
            }
            var node = element.node || element[0].node;
            node.parentNode.insertBefore(this.node, node);
            R._insertbefore(this, element, this.paper);
            return this;
        };
        elproto.blur = function (size) {
            // Experimental. No Safari support. Use it on your own risk.
            var t = this;
            if (+size !== 0) {
                var fltr = $("filter"),
                    blur = $("feGaussianBlur");
                t.attrs.blur = size;
                fltr.id = R.createUUID();
                $(blur, {stdDeviation: +size || 1.5});
                fltr.appendChild(blur);
                t.paper.defs.appendChild(fltr);
                t._blur = fltr;
                $(t.node, {filter: "url(#" + fltr.id + ")"});
            } else {
                if (t._blur) {
                    t._blur.parentNode.removeChild(t._blur);
                    delete t._blur;
                    delete t.attrs.blur;
                }
                t.node.removeAttribute("filter");
            }
            return t;
        };
        R._engine.circle = function (svg, x, y, r) {
            var el = $("circle");
            svg.canvas && svg.canvas.appendChild(el);
            var res = new Element(el, svg);
            res.attrs = {cx: x, cy: y, r: r, fill: "none", stroke: "#000"};
            res.type = "circle";
            $(el, res.attrs);
            return res;
        };
        R._engine.rect = function (svg, x, y, w, h, r) {
            var el = $("rect");
            svg.canvas && svg.canvas.appendChild(el);
            var res = new Element(el, svg);
            res.attrs = {x: x, y: y, width: w, height: h, r: r || 0, rx: r || 0, ry: r || 0, fill: "none", stroke: "#000"};
            res.type = "rect";
            $(el, res.attrs);
            return res;
        };
        R._engine.ellipse = function (svg, x, y, rx, ry) {
            var el = $("ellipse");
            svg.canvas && svg.canvas.appendChild(el);
            var res = new Element(el, svg);
            res.attrs = {cx: x, cy: y, rx: rx, ry: ry, fill: "none", stroke: "#000"};
            res.type = "ellipse";
            $(el, res.attrs);
            return res;
        };
        R._engine.image = function (svg, src, x, y, w, h) {
            var el = $("image");
            $(el, {x: x, y: y, width: w, height: h, preserveAspectRatio: "none"});
            el.setAttributeNS(xlink, "href", src);
            svg.canvas && svg.canvas.appendChild(el);
            var res = new Element(el, svg);
            res.attrs = {x: x, y: y, width: w, height: h, src: src};
            res.type = "image";
            return res;
        };
        R._engine.text = function (svg, x, y, text) {
            var el = $("text");
            svg.canvas && svg.canvas.appendChild(el);
            var res = new Element(el, svg);
            res.attrs = {
                x: x,
                y: y,
                "text-anchor": "middle",
                text: text,
                font: R._availableAttrs.font,
                stroke: "none",
                fill: "#000"
            };
            res.type = "text";
            setFillAndStroke(res, res.attrs);
            return res;
        };

        R._engine.setSize = function (width, height) {
            this.width = width || this.width;
            this.height = height || this.height;
            this.canvas.setAttribute("width", this.width);
            this.canvas.setAttribute("height", this.height);
            if (this._viewBox) {
                this.setViewBox.apply(this, this._viewBox);
            }
            return this;
        };
        R._engine.create = function () {
            var con = R._getContainer.apply(0, arguments),
                container = con && con.container,
                x = con.x,
                y = con.y,
                width = con.width,
                height = con.height;
            if (!container) {
                throw new Error("SVG container not found.");
            }
            var cnvs = $("svg"),
                css = "overflow:hidden;",
                isFloating;
            x = x || 0;
            y = y || 0;
            width = width || 512;
            height = height || 342;
            $(cnvs, {
                height: height,
                version: 1.1,
                width: width,
                xmlns: "http://www.w3.org/2000/svg"
            });
            if (container == 1) {
                cnvs.style.cssText = css + "position:absolute;left:" + x + "px;top:" + y + "px";
                R._g.doc.body.appendChild(cnvs);
                isFloating = 1;
            } else {
                cnvs.style.cssText = css + "position:relative";
                if (container.firstChild) {
                    container.insertBefore(cnvs, container.firstChild);
                } else {
                    container.appendChild(cnvs);
                }
            }
            container = new R._Paper;
            container.width = width;
            container.height = height;
            container.canvas = cnvs;
            container.clear();
            container._left = container._top = 0;
            isFloating && (container.renderfix = function () {});
            container.renderfix();
            return container;
        };
        R._engine.setViewBox = function (x, y, w, h, fit) {
            eve("raphael.setViewBox", this, this._viewBox, [x, y, w, h, fit]);
            var size = mmax(w / this.width, h / this.height),
                top = this.top,
                aspectRatio = fit ? "meet" : "xMinYMin",
                vb,
                sw;
            if (x == null) {
                if (this._vbSize) {
                    size = 1;
                }
                delete this._vbSize;
                vb = "0 0 " + this.width + S + this.height;
            } else {
                this._vbSize = size;
                vb = x + S + y + S + w + S + h;
            }
            $(this.canvas, {
                viewBox: vb,
                preserveAspectRatio: aspectRatio
            });
            while (size && top) {
                sw = "stroke-width" in top.attrs ? top.attrs["stroke-width"] : 1;
                top.attr({"stroke-width": sw});
                top._.dirty = 1;
                top._.dirtyT = 1;
                top = top.prev;
            }
            this._viewBox = [x, y, w, h, !!fit];
            return this;
        };


        /*\
         * Paper.renderfix
         [ method ]
         **
         * Fixes the issue of Firefox and IE9 regarding subpixel rendering. If paper is dependant
         * on other elements after reflow it could shift half pixel which cause for lines to lost their crispness.
         * This method fixes the issue.
         **
           Special thanks to Mariusz Nowak (http://www.medikoo.com/) for this method.
        \*/
        R.prototype.renderfix = function () {
            var cnvs = this.canvas,
                s = cnvs.style,
                pos;
            try {
                pos = cnvs.getScreenCTM() || cnvs.createSVGMatrix();
            } catch (e) {
                pos = cnvs.createSVGMatrix();
            }
            var left = -pos.e % 1,
                top = -pos.f % 1;
            if (left || top) {
                if (left) {
                    this._left = (this._left + left) % 1;
                    s.left = this._left + "px";
                }
                if (top) {
                    this._top = (this._top + top) % 1;
                    s.top = this._top + "px";
                }
            }
        };
        /*\
         * Paper.clear
         [ method ]
         **
         * Clears the paper, i.e. removes all the elements.
        \*/
        R.prototype.clear = function () {
            R.eve("raphael.clear", this);
            var c = this.canvas;
            while (c.firstChild) {
                c.removeChild(c.firstChild);
            }
            this.bottom = this.top = null;
            (this.desc = $("desc")).appendChild(R._g.doc.createTextNode("Created with Rapha\xebl " + R.version));
            c.appendChild(this.desc);
            c.appendChild(this.defs = $("defs"));
        };
        /*\
         * Paper.remove
         [ method ]
         **
         * Removes the paper from the DOM.
        \*/
        R.prototype.remove = function () {
            eve("raphael.remove", this);
            this.canvas.parentNode && this.canvas.parentNode.removeChild(this.canvas);
            for (var i in this) {
                this[i] = typeof this[i] == "function" ? R._removedFactory(i) : null;
            }
        };
        var setproto = R.st;
        for (var method in elproto) if (elproto[has](method) && !setproto[has](method)) {
            setproto[method] = (function (methodname) {
                return function () {
                    var arg = arguments;
                    return this.forEach(function (el) {
                        el[methodname].apply(el, arg);
                    });
                };
            })(method);
        }

        
    }(window.Raphael);
});

